Reflector arrangement for sewing machine illuminating systems



Dec. 23, 1952 M. J. SINGER 2,623,157

REFLECTOR ARRANGEMENT FOR SEWING MACHINE HILLUMINATINGI' SYSTEMS Filed Oct. 19, 1949 INVENTOR.

Patented Dec. 23, 1952 REFLECTOR ARRANGEMENT FOR SEWING MACHINE ILLUMINATING SYSTEMS Mor Josif Singer, The Hague, Netherlands Application October 19, 1949, Serial No. 122,252 In the Netherlands August 16, 1949 6 Claims.

The present invention relates to an illuminating system for sewing machines and more particularly to an illuminating system for sewing machines having a head with a vertical side face, an opposite sid face arranged at an inclination to the vertical, and a lowermost face substantially at a right angle with the vertical side face.

It is an object of the present invention to provide an illuminating system of the kind described which illuminates effectively the material on the table of the sewing machine which is sewn by the needle of th machine.

It is another object of the present invention to provide an illuminating system which is easily applied to the head of the machin and can be as easily detached from the latter.

It is a further object of the present invention to provide an illuminating system which throws light on the material on the table of the machine at opposite sides of the needle.

It is still another object of the present invention to provide an illuminating system which will adapt itself to different inclinations of the side faces of the head.

It is a still further object of th present invention to provide an illuminating system of the kind described which is sturdy and will stand the vibrations of the machine during operation thereof.

The present invention comprises a first lamp reflector, means for attaching this first lamp reflector to a side face of the head of the machine, a cross member rigidly connected to the first lamp reflector and having a longitudinal slot, a second lamp reflector, means connected to this second lamp reflector and engaging the slot in th cross member, and means for connecting the second lamp reflector to the opposite side face of the head of the machine.

In a preferred embodiment of my invention the lamp reflectors are oblong and the first lamp reflector has a body, a central member extending at an obtuse angl to the body and having a hole, means penetrating the hole of the central member for attaching the first lamp reflector to the vertical side fac of the head of the machine, whereas the cross-member extends substantially at right angles to one end of the body.

Preferably a pin is connected to one end face of the second lamp reflector and engages the slot of the cross-member.

In a preferred embodiment of the invention the second oblong lamp reflector is provided .with

a body and a central member haying a hole through which a screwbolt penetrates to engage the opposite side face of the head of the machine.

In a preferred embodiment of the invention the body of the first lamp reflector is provided with an extension engaging the edge of the lowermost face adjoining th vertical side face of the head of the machine. The cross member preferably engages the lowermost face of the head of the machine also.

The novel features which I consider as characteristic for my invention are set forth in particular in the appended claims. The invention itself, however, both as to its construction and its method of operation, together with additional objects and advantages thereof, will be best understood from the following description of specific embodiments when read in connection with the accompanying drawings, in which:

Fig. 1 is a side elevationpartly in section of an illuminating system according to the invention;

Fig. 2 is a perspective view of the first lamp reflector and the parts connected to it, and

Fig. 3 is a perspective view of the second lamp reflector.

Referring now to the drawings, a head It of a sewing machine carries at its lowermost face I2 a needle holder 14 with a needle [6 which is movable in vertical direction with respect to the part [8 of the table of the machine. The head has a vertical side face 20 and opposite side face 22 which is inclined at an angle to the vertical, preferably at 45.

The vertical face 20 of the head is provided with a threaded boring 24 for accommodating the threaded bolt of a holding screw 26 which penetrates a hole 28 of the central member 3% which extends from the body 32 of the first lamp reflector at an obtuse angle, preferably a The body 32 is substantially an oblong open box having a cover wall 34, side wall 36, and two end walls 38 and 40. The end walls 38 and 4B are provided with suitable bearings (not shown) for an oblong lamp (not shown) of usual design. The body 32 is so shaped that the light rays are eifectively reflected towards the table l8 of the machine to the'left of the needle 16.

The cover wall 34 of the body 32 is provided with a short extension 42 engaging the edge of the lowermost face I2 of the head l0 adjoining the vertical face 20. At the end wall 40 of the body'32 cross member 44 is provided extending substantially at right angles to the body 32 and engaging with its upper edge 46 the lowermost face [2 of the head I of the machine. Preferably the body 32, the central member 30, the cross member 44, and the extension 42 are made as one piece. The cross member 44 extends until and slightly beyond the lower end of the opposite face 22 of the head [0 and is provided at this end with a longitudinal slot 48 provided with semi-circular recesses 50 at its lower side and similar recesses 52 at its upper side, the recesses 52 being in staggered relation to the recesses 50.

The other lamp reflector consists of an-oblong body 54 which has a cover wall 55, a side wall 58 and end walls 60 and 62. The shape of this reflector is slightly diiferent from the reflector 32 and adapted to throw the light downwards to the right-hand side of the needle I6. The reflector 54 is provided at the inner sideof its end walls 68 and 62 with suitable bearings (not shown) for an oblong lamp (not shown). The end wall 69 is provided with threaded hole 64 which receives the bolt 66 of a screw provided with a head $3. The body 54 of the second lamp reflector is provided with a central member 18 having a threaded hole 12 into which a bolt '14 is screwed which abuts against the inclined side face 22 of the head I0. On the side of the central member 10 which is turned oil from the side face 22, the bolt 14 is provided with a nut 76 and a spring Washer 18 arranged between the central member Hi and the nut I6.

The electrical connections for the lamps are not shown in the drawing and are of customary design.

The operation of the device is as follows:

The first reflector is attached to the head of the machine in the position shown in Fig. 1 by'means of the holding screw 28 which is inserted into the hole 24 of the head IE1. In this position the extension 42. and the cross member 44" engage the lowermost face l2 of the head l0 and the rays of light are reflected towards that .part'of the table [8 which is to the left of the needle i6. Then the second reflector is attached by'in serting the screw bolt 66 into one of the recesses 59 or 52 of the slot 48 and screwing the bolt into the hole 64 of the end wall 60 of the body 5. In consequence thereof the head 58 of thebolt @6 clamps the cross member 44 between itself and the end wall 60, the head 68 having a size large enough to abut against the cross member 44 with suflicient frictional sur face. Thus the second reflector is secured to the cross member 44.

The screw bolt 74 is threaded into the hole '12 and serves for a fine adjustment of the second reflector with respect to the head of the ma= chine. It is to be understood that the body 54 of the second reflector and the central member it can adapt themselves within'limits to any inclination of the side face 22 different from that shown in the drawings.

It will be understood that each 'of the elements described above, or two or more together, may also find a useful application in othertypes of illuminating systems differing from'the types described above.

While I have illustrated and'described'the invention as embodied in illuminating systems for sewing machines, I do not intend to be limited to the details shown, since various modifications and structural changes may be made without departing in any way from the spirit'of my invention.

Without further analysis, the foregoing will 4 so fully reveal the gist of my invention that others can by applying current knowledge readily adapt it for various applications without omitting features that, from the standpoint of prior art, fairly constitute essential characteristics of the generic or specific aspects of this invention and, therefore, such adaptations should and are intended to be comprehended within the meaning and range of equivalence of the following claims.

What I claim as new and desire to secure by Letters Patent, is:

1. A reflector arrangement for an illuminating system of a sewing machine, or the like, comprising in combination, first elongated reflector means having an extension rigid therewith and normal to the length thereof, said extension having a free end portion; second elongated reflector means; first securing means adjustably connecting said second reflector means to said free end portion of said extension for adjustable movement about an axis substantially parallel to said first reflector means and for fixing said second reflector means in its adjusted position; second securing means mounted on said first reflector means for rigidly fixing the same to a part of the machine while permitting vibration of the thus secured first reflector means with respect to the machine part about said second securing means when the machine part is subject to vibratory movement; and an elongated abutment member mounted, for adjustable movement in the direction of its length, on said second reflector means, said abutment member having an end portion projecting from said second reflector means and adapted, in the adjusted position of said abutment member, t abut and press against the part of the machine at a point spaced from that point at which said first reflector means is fixed by said second securing means so as to force said first and second reflector means away from said machine part, thereby preventing vibrations of said first and second reflector means relative to the machine part during vibratory movement of the latter.

2. A reflector arrangement for an illuminating system of a sewing machine, or the like, comprising in combination, first elongated reflector means having an extension rigid therewith and normal to the length thereof, said extension having a free end portion formed with a slot also extending normal to the length of said first reflector means; first securing means mounted on said first reflector means for rigidly fixing the same to apart of the machine; second reflector means; second securing means connected to said second reflector means for joining the same to said free end portion of said extension at the slot thereof for adjustable turning movement about an axis substantial parallel to said first reflector means and for adjustable movement toward and away from the latter, said second securing means fixing said second reflector means, to said free end portion of said extension, in an adjusted position; and an elongated abutment member mounted, for adjustable movement along the length thereof, on said second reflector means and having an end portion projecting from said second reflector means and adapted to abut against a, part of the machine so as to finely adjust said second reflector means about this axis.

3. A reflector arrangement for an illuminating system of a sewing machine, or the like, comprising in combination, a pair of reflectors adapted to be located opposite each other and each having'a top wall provided with a rigid extension projecting upwardly therefrom and formed with a bore passing therethrough, one of said reflectors having an elongated member fixedly connected thereto, adapted to extend toward the other of said reflectors and having a portion adapted to overlap a side wall of said other reflector and being formed with a slot passing therethrough, said other reflector having a bolt threadedly connected to said side wall thereof and adapted to pass through said slot so that said portion of said elongated member may be gripped between the head of said bolt and said side wall of said other reflector, at least one of said bores being threaded so as to receive a screw member therein and the other of said bores being adapted to have a screw member pass therethrough for securing said reflectors to a machine part.

4. A reflector arrangement for an illuminating system of a sewing machine, or the like, comprising in combination, a pair of reflectors adapted to be located opposite each other, one of said reflectors having an elongated member fixedly connected thereto, adapted to extend toward the other of said reflectors and having a portion adapted to overlap a. side wall of said other reflector and being formed with a slot passing therethrough and having arcuate recesses formed along at least one edge thereof, said other reflector having a, bolt threadedly connected to said side wall thereof and adapted to pass through said slot and be located in one of said recesses so that said portion of said elon-' gated member may be gripped between the head of said bolt and said side wall of said other reflector.

5. A reflector arrangement for an illuminating system of a, sewing machine, or the like, comprising in combination, a pair of reflectors adapted to be located opposite each other, one of said reflectors having an elongated member fixedly connected thereto, adapted to extend toward the other of said reflectors and having a portion adapted to overlap a side wall of said other reflector and being formed with a. slot passing therethrough and having two sets of arcuate recesses formed along opposite edges thereof, said two sets of recesses being staggered with respect to each other, said other. reflector having a bolt threadedly connected to said side wall thereof and adapted to pass through said slot and be located in one of said recesses so that said portion of said elongated member may be gripped between the head of said bolt and said side wall of said other reflector.

6. A reflector arrangement for an illuminating system of a sewing machine, or the like, comprising in combination, a pair of reflectors adapted to be located opposite each other, and each having a top wall provided with a rigid extension projecting upwardly therefrom and formed with a bore passing therethrough, one of said reflectors having an elongated member fixedly connected thereto, adapted to extend toward the other of said reflectors and having a portion adapted to overlap a side wall of said other reflector and being formed with a slot passing therethrough and having two sets of arcuate recesses formed along opposite edges thereof, said two sets of recesses being staggered with respect to each other, said other reflector having a bolt threadedly connected to said side wall thereof and adapted to pass through said slot and be located in one of said recesses so that said portion of said elongated member may be gripped between the head of said bolt and said side wall 01' said other reflector, at least one of said bores being threaded so as to receive a screw member therein and the other of said bores being adapted to have a screw member pass therethrough for securing said reflectors to a machine part.

MOR J OSIF SINGER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,639,600 Frierson Aug. 16, 1927 1,745,810 Pickett Feb. 4, 1930 1,993,979 Reed Mar. 12, 1935 2,208,522 Cullman July 16, 1940 2,217,863 Gerberg Oct. 15, 1940 2,286,492 Langille June 16, 1942 FOREIGN PATENTS Number Country Date 98,456 Sweden Jan. 25, 1940 103,251 Sweden Oct. 9, 1941 260,274 Switzerland Mar. 15, 1949 

